Results 31 to 40 of about 861,847 (264)
Non-Radial Oscillations in δ Scuti Stars and Rapidly Oscillating AP Stars [PDF]
Highlights of Astronomy, 1986 AbstractThe present state of our knowledge of non-radial oscillations in δ Scuti stars and Rapidly Oscillating Ap stars is discussed primarily from an observational point of view. For the δ Scuti stars the need for complete frequency solutions for multi-periodic non-radial oscillating stars is emphasized in order for stellar seismology of these stars ...
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TORSIONAL OSCILLATIONS OF NONBARE STRANGE STARS [PDF]
The Astrophysical Journal, 2015 Strange stars are one of the possible compact stellar objects that can be formed after a supernova collapse. We consider a model of strange star having an inner core in the color-flavor locked phase surmounted by a crystalline color superconducting layer.
MANNARELLI, MASSIMO +4 more
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Two first-order phase transitions in hybrid compact stars: Higher-order multiplet stars, reaction modes, and intermediate conversion speeds [PDF]
Physical Review D, 2022 We study compact stars with hybrid equations of state consisting of a nuclear outer region and two nested quark phases, each separated from the lower density phase by a strong first-order phase transition.
P. B. Rau, A. Sedrakian
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Oscillating Star Formation [PDF]
Symposium - International Astronomical Union, 1986 As a consequence of positive feedback effects in interstellar chemical and star forming processes, a star formation region may undergo nonlinear oscillations.
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Lifting the Veil on Quark Matter in Compact Stars with Core g-mode Oscillations [PDF]
Astrophysical Journal, 2018 Compact stars containing quark matter may masquerade as neutron stars in the range of measured mass and radius, making it difficult to draw firm conclusions on the phase of matter inside the star.
Wei Wei +4 more
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Universal Relations for Neutron Star F-Mode and G-Mode Oscillations [PDF]
, 2022 Among the various oscillation modes of neutron stars, f- and g- modes are the most likely to be ultimately observed in binary neutron star mergers, due to the relatively large coupling and shared frequencies with tidal excitations. The f-mode is known to
Tianqi Zhao, J. Lattimer
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Search for Oscillations in Some Ap Stars [PDF]
Symposium - International Astronomical Union, 1988 Photometric observations of some Ap stars with a 50 cm telescope have been carried out at Izaña (Tenerife) in February 1986. The stars observed were, generally, magnetic - cool Ap stars. A search for global oscillations in the range 3 to 15 minutes has been undertaken and they seem to be present in some of the stars observed.
J.A. Belmonte +2 more
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Heartbeat stars, tidally excited oscillations and resonance locking [PDF]
, 2017 Heartbeat stars are eccentric binary stars in short-period orbits whose light curves are shaped by tidal distortion, reflection and Doppler beaming. Some heartbeat stars exhibit tidally excited oscillations and present new opportunities for understanding
J. Fuller
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Oscillations of rapidly rotating superfluid stars [PDF]
Monthly Notices of the Royal Astronomical Society, 2009 Using time evolutions of the relevant linearised equations we study non-axisymmetric oscillations of rapidly rotating and superfluid neutron stars. We consider perturbations of Newtonian axisymmetric background configurations and account for the presence of superfluid components via the standard two-fluid model. Within the Cowling approximation, we are
Passamonti, A. +2 more
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The Interior Angular Momentum of Core Hydrogen Burning Stars from Gravity-mode Oscillations [PDF]
, 2017 A major uncertainty in the theory of stellar evolution is the angular momentum distribution inside stars and its change during stellar life. We compose a sample of 67 stars in the core hydrogen burning phase with a value from high-resolution spectroscopy,
C. Aerts +5 more
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